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Condensed Consolidated Statements Of Operations (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Income from operations of discontinued businesses, income tax expense (benefit)	$ (2)	$ (16)	$ 3	$ (22)
Gain/(loss) from disposal of discontinued businesses, income tax expense (benefit)	$ (1)	$ 0	$ 60	$ 0

Income tax expense or benefit attributable to Income or Loss from discontinued operations during the phase-out period.

Amount of tax expense or benefit on gain (loss), not previously recognized, resulting from the sale of a business component.